There are many potential teachers in fanfiction for Harry's private lesson. One option could be a time - traveling wizard from the future. This wizard could see that Harry needs certain skills to face future challenges and come back to teach him. Or it could be a wizard who has been in hiding for a long time, with a vast amount of knowledge about ancient magic that he imparts to Harry during the private lesson.
Well, in the private lesson in fanfiction, he could have one - on - one time with a powerful wizard or witch. This might lead to him getting insights into the wizarding world's secrets. Maybe he'd learn about hidden magical places or the true nature of certain magical artifacts. It could also be a time for him to develop his personal magical style, different from what Hogwarts usually teaches.
One such story could be: A little bird was always afraid to fly high. One day, it mustered the courage and soared. The moral? Face your fears to reach new heights.
One possible moral could be that even in the briefest of encounters, emotions can run deep and have a lasting impact. Also, it might suggest that war and its aftermath can change people and their connections irreversibly.
One reason it stands out is the detailed world-building and the unexpected turns in the plot. Also, the character development is really well done, making you root for the protagonist throughout the story.
One main theme is regret. For example, in stories where someone makes a hasty decision and later realizes it was wrong. They regret their actions but can't easily undo the damage. Another theme is loss, like losing a friendship due to one's own mistakes or losing an opportunity because of laziness.
It could be that the lesson is to not judge people based on their appearance or background. There might also be a message about the value of hard work and determination.